Effects of SiO2 nanoparticles on the performance of carboxyl-randomized liquid butadiene–acrylonitrile rubber modified epoxy nanocomposites

2007 ◽  
Vol 106 (2) ◽  
pp. 1347-1352 ◽  
Author(s):  
Minfeng Zeng ◽  
Xudong Sun ◽  
Xiandong Yao ◽  
Genzhong Ji ◽  
Ning Chen ◽  
...  
Keyword(s):  
Sio2 Nanoparticles ◽  
Epoxy Nanocomposites ◽  
Modified Epoxy

Block Copolymer and Nanosilica-Modified Epoxy Nanocomposites

2021 ◽  
Author(s):  
Vincent Pang ◽  
Zachary J. Thompson ◽  
Guy D. Joly ◽  
Lorraine F. Francis ◽  
Frank S. Bates
Keyword(s):  
Block Copolymer ◽  
Epoxy Nanocomposites ◽  
Modified Epoxy

Preparation of TiO2 and SiO2 Nanoparticles and their Effect on Epoxy Resin Nanocomposites

2020 ◽  
Vol 12 (2) ◽  
pp. 135-141
Author(s):  
Gagi Tauhidur Rahman ◽  
Moumita Tasnim Meem ◽  
Md. Abdul Gafur ◽  
Abu Mahmud ◽  
Md. Asadul Hoque
Keyword(s):  
Polymer Matrix ◽  
Epoxy Matrix ◽  
Sol Gel ◽  
Sio2 Nanoparticles ◽  
Silica Sand ◽  
Epoxy Nanocomposites ◽  
Nano Sio2 ◽  
Sem Image ◽  
Comparable Performance ◽  
Xrd Patterns

Background: Polymer matrix-based composites are the workhorse of the composite industries. Besides, the idea of modifying the polymer matrix by various inorganic fillers has greatly drawn the attention of materials engineers due to their diversified applications and advanced properties. Objective: The objective of this work was to prepare and characterize Titania (TiO2) and Silica (SiO2) nanoparticles and develop 1wt%, 3wt%, 5wt% and 10wt% TiO2 and SiO2 incorporated epoxy-based nanocomposites. Here, we used TiO2 incorporated epoxy composites as a model to compare the effectiveness and contribution of locally available nano SiO2 in the epoxy matrix. Method: The TiO2 nanoparticles were prepared by most famous and conventional sol-gel method and SiO2 nanoparticles were extracted from Padma river (silica) sand obtained from Rajshahi city, Bangladesh from a very easy and inexpensive route. Both TiO2/epoxy and SiO2/epoxy nanocomposites (approximately 1.3-1.5 mm thick) were prepared via a solution casting method incorporating the TiO2 and SiO2 nanofillers in the epoxy matrix. Results: The XRD patterns and SEM image ensure the formation of TiO2 and SiO2 nanoparticles. A number of tests reveal that mechanical properties especially hardness and young’s modulus of the nanocomposites have increased while decreasing the tensile and flexural strength than neat epoxy due to the incorporation of nanofiller. It is visible that, TiO2/epoxy nanocomposites have shown better performance than the virgin epoxy but surprisingly in most cases, nano SiO2 exhibited comparable and even better contribution than TiO2/epoxy nanocomposites. This indicates that the use of TiO2 in epoxy might be replaced by inexpensive nano SiO2 to be used in various structural sectors. Conclusion: The TiO2 and SiO2 nanoparticles were synthesized successfully. The preliminary experiments predict that the addition of nanoparticles (TiO2, SiO2) converts the composite from being ductile into a brittle material where SiO2/epoxy shows comparable performance with TiO2/epoxy nanocomposites.

Influence of temperature on tensile behavior of multiwalled carbon nanotube modified epoxy nanocomposites

2014 ◽  
Vol 29 (15) ◽  
pp. 1635-1641
Author(s):  
Aroor Revathi ◽  
Sandhya Rao ◽  
Kavitha V. Rao ◽  
Myadam Rajendra Prakash ◽  
Mohanraj Sendil Murugan ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Tensile Behavior ◽  
Multiwalled Carbon Nanotube ◽  
Epoxy Nanocomposites ◽  
Multiwalled Carbon ◽  
Influence Of Temperature ◽  
Influence Of Temperature On ◽  
Image Position ◽  
Modified Epoxy

Abstract

A Preliminary Study on Cryogenic Mechanical Properties of Epoxy Blend Matrices and SiO2/Epoxy Nanocomposites

2006 ◽  
Vol 312 ◽  
pp. 211-216 ◽  
Author(s):  
Shao Yun Fu ◽  
Qin-Yan Pan ◽  
Chuan Jun Huang ◽  
Guo Yang ◽  
Xin-Hou Liu ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Room Temperature ◽  
Sol Gel ◽  
Sio2 Nanoparticles ◽  
Diglycidyl Ether ◽  
Slight Reduction ◽  
Epoxy Nanocomposites ◽  
Sol Gel Process ◽  
Cryogenic Mechanical Properties

Epoxy blend matrices were prepared by incorporating polyurethane-epoxy into diglycidyl ether of bisphenol-F (DGEBF) type epoxy while SiO2/epoxy nanocomposites were made using DGEBF type epoxy and tetraethylorthosilicate (TEOS) via a sol-gel process. The mechanical properties including tensile and impact properties at 77 K of the matrices and nanocomposites were studied. The mechanical properties at room temperature were also given for the purpose of comparison with the cryogenic mechanical properties. The results showed that the incorporation of polyurethane-epoxy with a proper content into DGEBF type epoxy enhanced the mechanical properties at both room and cryogenic temperatures. Addition of SiO2 nanoparticles to DGEBF type epoxy led to significant increase in tensile strength at cryogenic temperature (77 K) while no evident change in tensile strength at room temperature. In addition, a slight enhancement by the addition of 2 wt % silica while a slight reduction by the addition of 4 wt % silica were observed in impact energy.

scholarly journals Enhancement in Nanomechanical, Thermal, and Abrasion Properties of SiO2 Nanoparticle-Modified Epoxy Coatings

Coatings ◽  
2020 ◽  
Vol 10 (4) ◽  
pp. 310 ◽  
Author(s):  
Mohammad Asif Alam ◽  
Ubair Abdus Samad ◽  
Manawwer Alam ◽  
Arfat Anis ◽  
Saeed M. Al-Zahrani
Keyword(s):  
Sio2 Nanoparticles ◽  
Scratch Resistance ◽  
Sem Images ◽  
X Ray ◽  
Nanomechanical Properties ◽  
Nanomechanical Testing ◽  
Steel Substrates ◽  
The Impact ◽  
Modified Epoxy ◽  
Dispersion Of Nanoparticles

Epoxy formulations containing 1%, 3%, and 5% SiO2 nanoparticles (SNPs) were produced and applied to mild steel substrates in order to improve their thermal, nanomechanical, and abrasion resistance. Field emission scanning electron microscopy (FE-SEM) was used to analyze the dispersion of nanoparticles in the final coating samples, and Energy-dispersive X-ray spectroscopy (EDX) was used to confirm the presence of nanoparticles. Thermogravimetric analysis (TGA) was employed to measure the thermal resistance of the prepared coatings. Conventional techniques were used to measure the impact and scratch resistance. For nanomechanical testing, nanoindentation was performed using a Berkovich-type indenter. Using a taber abraser, the abrasion properties of the coatings were measured. The FE-SEM images indicated good dispersion of the nanoparticles at all three different loading levels. The scratch, impact, and hardness of coatings improved with the addition of the SNPs. Nanomechanical properties, such as hardness and elastic modulus, improved when compared to the unmodified coatings. The thermal and abrasion resistances of the coatings improved with the increase in the SNPs content of the coatings. The highest mechanical, thermal, and abrasion properties were obtained for the coatings with 5% SNP content.

Preparation and Properties Evaluation of Thermoplastic Modified Epoxy Nanocomposites

2011 ◽  
Vol 51 (6) ◽  
pp. 1159-1171 ◽  
Author(s):  
M. Bakar ◽  
A. Białkowska ◽  
J. Molenda ◽  
J. Piasek
Keyword(s):  
Epoxy Nanocomposites ◽  
Modified Epoxy

Elastomer/thermoplastic modified epoxy nanocomposites: The hybrid effect of ‘micro’ and ‘nano’ scale

2017 ◽  
Vol 116 ◽  
pp. 1-29 ◽  
Author(s):  
Poornima Vijayan P. ◽  
Debora Puglia ◽  
Mariam Ali S.A. Al-Maadeed ◽  
Jose. M. Kenny ◽  
Sabu Thomas
Keyword(s):  
Epoxy Nanocomposites ◽  
Hybrid Effect ◽  
Nano Scale ◽  
Modified Epoxy
Sign in / Sign up

Export Citation Format

Share Document